René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"clabel not respecting zorder parameter","articleBody":"To help us understand and resolve your issue, please fill out the form to the best of your ability. You can feel free to delete the sections that do not apply.\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\nContour-line labels produced with `plt.clabel` are not respecting the `zorder` parameter, e.g. in the attached figure, the contour labels should be appearing above the grey lines.\r\n\r\n![clabel_test](https://cloud.githubusercontent.com/assets/3839265/22349975/ffcaba1a-e3df-11e6-8707-0a93a13550f5.png)\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport numpy as np\r\nimport matplotlib as mpl\r\nfrom matplotlib import pyplot as plt\r\n\r\nNX = 20\r\nNY = 40\r\nxvals = np.arange(NX)\r\nyvals = np.arange(NY)\r\nxgrid, ygrid = np.meshgrid(xvals, yvals)\r\n\r\ndef get_scalarmappable(min=0.0, max=1.0):\r\n    cmap = 'Oranges'\r\n    cmap = plt.get_cmap(cmap)\r\n    norm = mpl.colors.Normalize(vmin=min, vmax=max)\r\n    smap = mpl.cm.ScalarMappable(norm=norm, cmap=cmap)\r\n    smap._A = []\r\n    return smap\r\n\r\n# Construct 2D Function to plot\r\nhist = 1.0 - yvals[np.newaxis, :]/yvals.max() + np.power(xvals[:, np.newaxis]/xvals.max() - 0.5, 3.0)\r\nmin = hist.min()\r\nmax = hist.max()\r\n\r\n# Load colormap\r\nsmap = get_scalarmappable(min=min, max=max)\r\n\r\n# Construct Figure\r\nfig, ax = plt.subplots(figsize=[8, 6])\r\n\r\n# Plot grid\r\npcm = ax.pcolormesh(xgrid, ygrid, hist.T, norm=smap.norm, cmap=smap.cmap, linewidth=0,\r\n                    rasterized=True, vmin=smap.norm.vmin, vmax=smap.norm.vmax)\r\npcm.set_edgecolor('face')\r\n\r\n# Construct contour line (levels)\r\nnum = 3\r\nlevels = min + np.arange(1, num+1)*(max-min)/(num+1)\r\n\r\n# Create grey backdrop for contour lines\r\nax.contour(xgrid, ygrid, hist.T, colors='0.50', norm=smap.norm,\r\n           levels=levels, linewidths=6.0, antialiased=True, zorder=10)\r\n# Plot colored contour lines\r\ncs = ax.contour(xgrid, ygrid, hist.T, cmap=smap.cmap, norm=smap.norm,\r\n                levels=levels, linewidths=2.5, antialiased=True, zorder=11, alpha=1.0)\r\n\r\n# Plot contour-line labels (at a higher zorder than grey lines)\r\nplt.clabel(cs, zorder=50, inline=True, fontsize=16, colors='0.8')\r\n\r\nfig.savefig('clabel_test.png')\r\n```\r\n\r\nmatplotlib                2.0.0               np111py35_0  \r\nPython 3.5.2 :: Anaconda custom (x86_64)  \r\nmacOS Sierra 10.12.3 (16D32)\r\nMacBook Pro (15-inch, Late 2016)","author":{"url":"https://github.com/lzkelley","@type":"Person","name":"lzkelley"},"datePublished":"2017-01-26T21:00:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/7957/matplotlib/issues/7957"}